Name: SentryKey
Rating: 5 (2 reviews)
Author: Fennell

SentryKey puts your two-factor authentication codes on your wrist.

It's a standalone TOTP authenticator for your Garmin watch. Add your 2FA accounts in the free SentryKey companion app (Android or iPhone) by scanning their QR codes, then sync them to your watch over Bluetooth. From then on your watch generates your rotating 6-digit codes entirely on its own — no phone required.

• On-device codes — RFC 6238 TOTP computed on the watch itself.
• Premium dark interface with a countdown ring that turns red in the final seconds before a code rotates.
• Multiple accounts with auto-fitting labels and page navigation.
• Optional end-to-end encrypted sync — set a matching passphrase in the companion app and the watch settings.
• Restore to phone — send your vault back to a new or reset phone, gated by an on-watch confirmation.

Open source and privacy-respecting: your secrets stay on your devices. Requires the free SentryKey companion app. Not affiliated with or endorsed by Garmin.